FOXBOROUGH, Mass. >>The NFL Players Association has filed a grievance to help former New England Patriots star tight end Aaron Hernandez collect an $82,000 workout bonus.

The union says it has a responsibility to protect the rights in the collective bargaining agreement for all players. Hernandez’s contract provides for him to receive that amount if he participated in the team’s workouts from April to June.

The Patriots cut Hernandez after he was arrested on June 26 and before he was charged with murder later that day. He pleaded not guilty in the shooting death of Odin Lloyd and is being held without bail. The union believes Hernandez earned the bonus before his arrest.